For service and parts needs, visit your dealer. You will receive genuine GM parts and GM-trained and supported service people.
Genuine GM parts have one of these marks:

Vehicle Care
California Proposition 65 WarningOperation
Controls
The infotainment system is operated by using the pushbuttons, multifunction knobs,
menus shown on the display, and steering wheel controls, if equipped.
Turning the System On or Off
(Volume/Power): Press to turn the
system on and off.
Automatic Switch-Off
If the infotainment syste ...
Cruise Control
For vehicles with cruise control, the vehicle can maintain a speed of about 40
km/h (25 mph) or more without keeping your foot on the accelerator. Cruise control
does not work at speeds below 40 km/h (25 mph).
If the brakes are applied, the cruise control shuts off.
The vehicle has a Traction ...
Driver or Passenger Seat Retractor Side Belt Replacement
Warning: Refer to SIR Warning in the Preface section.
Warning: In order to prevent accidental deployment and the risk of personal
injury, do not dispose of an undeployed inflatable
restraint seat belt pretensioner as normal shop waste. Undeployed seat belt
pretensioners contain substance ...